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GMLW 14 Plus

Ochsner GMLW, GMLW 9, GMLW 14, GMLW 19, GMLW 25 Installation And Operating Instructions Manual

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Installation and Operating Instructions
GMLW
Heat Pump Heating/Cooling/Hot Water
Contents:
Installation and Operating Instructions Heat
Pump ................................................................... 2
1 Notes on the documentation .................. 4
2 Safety instructions ................................. 4
2.1 CE Labelling ................................................... 5
3 Appliance description ............................. 5
3.1 Function ......................................................... 5
3.2 Heat Pumps GMLW ....................................... 5
3.3 Guarantee ...................................................... 5
4 Installation ............................................. 6
4.1 Delivery .......................................................... 6
4.2 Transport ........................................................ 7
4.3 Installation location ......................................... 7
4.3.1 Installation of split outdoor unit ....................... 7
4.4 Connecting the heating system ...................... 8
4.4.1 Cooling operation ........................................... 9
4.5 Heat source connection .................................. 9
4.5.1 Wall conduit .................................................... 9
4.5.2 Refrigerant pipework ...................................... 9
4.5.3 Leak check ..................................................... 9
4.5.4 Insulation ........................................................ 9
4.6 Electrical connection .................................... 10
4.6.1 Supply voltage to heat pump ........................ 10
4.6.2 Evaporator wiring ......................................... 11
4.6.3 Cable cross sections .................................... 11
4.6.4 Sensor wiring ................................................ 12
4.6.5 Pumps, motors 230 VAC .............................. 12
4.7 Utility control contact .................................... 12
4.7.1 Switch off via tariff relay:............................... 13
4.7.2 Switch off via ripple control ........................... 13
5 Commissioning ..................................... 13
5.1 Required on-site personnel: ......................... 13
5.2 Check list for commissioning ........................ 14
6 Operating the system ........................... 14
6.1 Safety functions ............................................ 14
6.2 Running costs............................................... 14
7 Maintenance ......................................... 15
7.1 Service work ................................................. 15
7.2 Service and Maintenance ............................. 15
7.3 Trouble shooting ........................................... 16
ANNEX ............................................................... 18
Technical Data GMLW ............................................... 19
Technical Data GMLW plus ........................................ 20
Evaporator connection pipework ................................. 21
Dimensions sheet ....................................................... 22
Operation data MLLENIUM evaporator ..................... 23
Declaration of conformity ............................................ 24
Installation and Operating Instructions Heat Pump
1 Notes on the documentation
The following pointers are valid for the whole of the documentation.
Storage:
This instruction Manual must be kept within easy access close to the heat pump.
Symbols:
The precautionary pointers below will be used in this document..
Pointer which, if not heeded, can mean danger to life and limb, and can also lead to material damage. These pointers must be heeded with­out fail.
Pointer which, if not heeded, can lead to an appliance malfunction and to material damage (to system components, building, ...). These pointers must be heeded.
Tips which are intended to aid the job in hand, or mean additional information for the user.
WARNING
CAUTION
POINTER
2 Safety instructions
Read this manual carefully before you begin to commission/adjust the heat pump!
Converting or altering the appli­ance is not allowed. Work on the appliance (repairs, alterations) may only be carried out by the manufac­turer or by a specialist authorised by the manufacturer.
All circuit breakers in the heating system are to be turned off before any work is carried out on the terminal strips or electrical con­nections (wiring). The heating system comprises the control, the additional modules and the com­ponents connected to the control (energy generator, pumps, non­self-resetting safety thermostat, etc.).
Contact with the terminal strips, wires connected to them, or non­connected wires by persons or by means of electrically conductive materials is prohibited, as the terminal strips could be live (dan­ger of contact with live circuit).
The control, additional modules, terminal strips and control wiring may also be being supplied with live voltage by means of external switching (non-self-resetting safety equipment, etc) when the control is not connected, or no line voltage is on the control
The commissioning as well as the maintenance of the appliances may
only be carried out by personnel which are authorised by OCHSNER.
The installation of the appliances and their electrical wiring may only be carried out by a specialist accord­ing to local regulations and codes of practice.
Safety functions for the heat pump may be activated with the control. As the control is, however, not certi­fied as a safety appliance, safety mechanisms against failure of, or damage to the heat pump must ad­here to local safety regulations (e.g. through supplementary external switching of the safety appliances used)..
If upgrades/updates to the control software are carried out, all parame­tered functions of the heat pump are to be controlled once again
2.1 CE Labelling
The product you have purchased conforms to the technical regulations valid at the time of manufacture, and is CE-conform.
3 Appliance description
3.1 Function
The heat pump converts low-temperature warmth (for instance, the heat in the soil) into warmth of a higher temperature (water for heat­ing). The heat pump extracts from the ambient:
• Soil
• Ground water
• Air
the solar energy stored therein and yields this, plus the driving energy (electricity) to the heat­ing and hot water circuits in the form of heat. The system consists of separate circuits which are connected by means of heat exchangers.
3.2 Heat Pumps GMLW
Heat pumps of the type GMLW are split appli­ances, where the compressor unit is installed inside, and the evaporator outside the building.
The compressor unit is suitable for indoor-installation door installation.
The heat extraction (from the heat source cir­cuit) takes place usually from the ambient air by means of a finned-tube heat exchanger. The GMLW heat pumps function at low tem­peratures in bivalent-parallel operation. The heat pump can, however, be combined at any time with a further heat generating system.
and NOT for out-
3.3 Guarantee
All OCHSNER heat pumps carry a guarantee of 24 months, if the installation and operating in­structions are adhered to and the system data sheet is filled out and stored correctly. The concept and design of the system is to be carried out according to current Ochsner – guidelines and the valid technical regulations. For flat laying for the heat source ground, the responsibility for the design of the extraction area lies with the system planner, taking the local conditions on site into account.
No guarantee will be given for any defects to the heat pump which are caused by the heat source system, the heating system itself, faulty adjustment of the control and regulation ele­ments or by elementary occurrences (lightning,
flood damage,......)
The heat pump is to be commis­sioned by OCHSNER factory cus­tomer service engineers. The cor­rect construction and function of the heating system, the heat source and the electrical installa­tion is the be ensured by the in­staller. Otherwise, no guarantee or warranty claims will be recog­nised.
The electrical heating rods and circulation pumps carry a guarantee period of 12 months. Parts subject to wear and tear such as protec­tive anodes, filters, signal lamps etc. are ex­cluded from guarantee and warranty claims. Increased effort due to appliances that are in­correctly located or mounted shall be invoiced with the guarantee work.
Read this instruction manual care­fully before you start commission­ing the heat pump!
4 Installation
4.1 Delivery
The heat pump is delivered on a non-returnable palette and pack in cling-film. The cladding is supplied in the heat pump packaging. ARA License Nr. 7910
Any transport damage must be im­mediately reported upon delivery!
The complete cladding must only be fitted after the heat pump has been entirely connected up.
4
3
1
2
Fig. 1: Casing
1. Mount the left and right hand side panels to
the base frame using the Velcro fasteners.
2. Mount the front panel on to the lugs on the
side panels.
3. Slide the plastic cover into the slots provided
on the front panel and screw to the side panels using the 2 screws provided.
4. Position the top panel on the side panels,
slide it towards the plastic cover until it slots home. Screw the top panel to the rear panel using the 2 screws provided.
4.2 Transport
The heat pump is to be transported and stored in a packaged condition. Careful transport at an angle of 45° is allowed over short distances. Ambient temperatures of –20°C to +45°C are allowed both for transport and storage. The standard packaging affords no protection against weather and sea-water. Transport damage can only be recognised if this is made known to the driver of the delivery vehicle during unloading.
4.3 Installation location
The GMLW heat pump can be installed in any
and frost free room.
dry The installation must face. The location of the appliance is to be se­lected such that operation and maintenance are possible at any time.
(Clearance from the rear of the heat pump to the wall - min. 50 cm, clearance from the side of the heat pump to the wall - 30 cm, clearance from the front of the heat pump to the wall - 70 cm). The heat pump must from the floor. Reverberant rooms can lead to increased noise sensitivity. A possible noise transfer to adjoin­ing rooms cannot be ruled out and must be considered during the design.
4.3.1 Installation of split outdoor unit
The installation of the split outdoor unit rator) is only permissible in the open air and is to be carried out in such a way that the air-flow is not hindered on any side.
take place on a level sur-
be decoupled acoustically
(evapo-
A maximum of one side may face a wall. A minimum clearance of 1m must be ensured.
min. 1 m
Fig. 2: Minimum clearance to a wall
Evaporator
A minimum of 3m clearance above the unit is to be ensured. Installing the unit in a hollow is not permitted.
min. 3 m
Evaporator
Fig. 3: Minimum clearance to a ceiling
The distance from the heat pump to the evapo­rator is usually up to 10m (horizontal). The maximum permissible difference in height (top edge of evaporator) is 7m. Larger distances are to be agreed with the factory in advance.
The following points are to be heeded w hen installing the evaporator:
• avoid
installing on hard floors which could
transmit vibration
• installing between two walls could lead to an increase in noise level
Pointer for the installation:
The higher the performance rating of the heat pump, the louder the noise made by the compressor.
• avoid
• plants and vegetated surfaces can reduce
• in closed rooms, the noise level is depend-
• a frost-protected drainage is to be con-
installing the evaporator alongside
bedrooms the noise level ent on the volume of the room and its re-
verberation time.
structed in order to drain off the condensate accruing. In order to guarantee this, it is usual to make a collection sump (not sup­plied) below the evaporator (see Fig. 4) If it is not possible to make a collection sump with drainage, a gravel bed is to be made under the evaporator, In winter ice can form in the drainage area..
If the condensate drainage is not executed as recommended, ice could build up of the surfaces around the evaporator!
4.4 Connecting the heating system
The heat pump’s hydraulic connec­tion made only be carried out by a specialist according to local regula­tions!
All heat pump connections are to be carried out in a flexible fashion. Acoustic bridges are to be avoided when installing the pipework. The siz­ing of the pipe network as well as the selection of the circulation pump depend upon the heat­ing system in place.
Make sure the following design fundamen­tals are considered:
The rate of flow in the pipe network must not exceed 0,8 m/s (noise/resistance).
In order to ensure a comfortable and disturbance-free operation, a tem­perature difference of 5K between the heating system flow and return is to be maintained.
When designing the heating system circulation pump/buffer charge pump, take the internal pressure dif­ference in the heat pump condenser into account (see technical data)! Integrated heating circulation pumps are designed as buffer charge pumps (technical data – see an­nexe). The rate of flow in the pipe network must not exceed 0,8 m/s (noise/resistance).
For air/water heat pumps the installation of a suitably sized decoupling tank (separation tank, buffer tank) absolutely necessary in order to be able to provide the necessary energy to be able to defrost. A manual bleeding valve must be installed at the highest point in the pipework. . If this is not done, there is a danger that the heat pump will not reach the declared cata­logue rating and under certain conditions will be shut off by means of the high-pressure switch,Æ ERROR report (see operation instruc­tions OTE).
It must be ensured that no foreign bodies can get into the pipework (dust, dirt, etc.).
A sieve filter pipework to the heat pump in order to trap any dirt. Make sure that the dirt collector clean for maintenance purposes.
A clogged filter will substantially effect the heat dissipation and can lead to switch-off by the high-pressure safety mechanism! Valves and thermometers both the flow and return pipework, so that the heat pump water flow rate and the running con­ditions can be continuously monitored. A drain pipe in the pipework so that the system can be drained.
The heating system pipework is to be sized according to the technical data of the heat pump. Sample hydraulic standard schematics can be found in Annex A.
can be inserted into the return
is easy to
are to be installed in
is to be installed at the lowest point
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